Milk-can lock



H, F. a FQ LEsEMAN. .MILK CAN LUCK.

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vFammi Nov. 22, |398.

catxon led Aug. 12, 1897) oI t l" Il lllllll nnumml f [Mii Qzwwm UNITEDSTATES ATENT Fries.

HARRY F. LESEMAN AND FREDERICK LESEMAN, OF MILLVAITE,

PENNSYLVANIA. y

MILK-CAN LOCK.

SPECIFICATION forming part of Letters Patent No. 614,732, dated November22, 1898.

Application led August 12, 1897. Serial No. 647,986. (No model) T0 allwhom t may concern,.-

Be it known that we, HARRY F. LESEMAN and FREDERICK LESEMAN, citizens ofthe United States of America, residing at Millvale, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Milk-Can Locks, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements inmilk-can locks, and has for its object to provide a lock the mechanismof which will be entirely contained within the lid of the can, whichwill serve to prevent the injury `of the lock during shipment. y

The invention consists, brieiiy, in the shell or casing which incloses acircular disk or wheel provided with circumferential flanges, which areengaged by rack-arms which form the locking-bars, the said disk or wheelhaving a stud protruding through the casing to receive the key foroperating the wheel and engaging or disengaging the rack-arms; and theinvention finally consists in the novel construction, combination, andarrangement of parts to be hereinafter more fully described, andparticularly pointed out in the claim.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of this specification, and whereinlike letters of reference indicate similar parts throughout the severalviews, in which-"- A Figure l is a side view of a portion of a milk-canwith the lid in its position. Fig. 2 is a side view of the lid, showingposition of the lock in dotted lines and the end of one of the rack-armsorlocking-bars protruding through the lid. Fig. 3 is an underneath viewof the lock with the lower plate of the casing removed. Fig. 4t is aplan view of the lower plate of the casing. Fig. 5 is a centralsectional view of the lock. Fig. 6 is a side view of the same. Fig. 7 isa side view of one of the rack-arms or locking-bars. Fig. 8 is a sideelevation of the key. Fig. 9 is an end view of the same.

Referring now to the drawings by reference-letters, a indicates thecan-lid, within which and in the upper portion of the same is securedthe casing containing the locking mechanism, the lower plate b of saidcasing being provided with ridges c, which form guides for thelocking-bars cl, having a rack portion d', which is engaged by thecircumferential anges e, formed on the underneath face of the disk orwheef f, which is suitably journaled in the plate b and is provided withan upwardly-extending stud g, which may be of any peculiar shape desiredin order to conform with the shank 7L of the key. The outer ends of thelocking-bars cl protrude through the rim 7c of the casing, saidlocking-bars being operated through the connection with thecircumferential flanges as the disk or wheel is operated to draw thelocking-bars within the casing or force the same outwardly to engage inthe annularbead Z, formed in the rim of the can. The upper plate m hasformed integral therewith a series of radially-proj ecting flanges m',the inner ends of which are concen` tric with the center of the plate.Said flanges m', serving to retain the wheel or disk on a concentricposition in relation to the plate m of the casing, are held intact withthe remainder by means of bolts n, passing through the upper and lowerplate and through bushings or collars 0, provided. between the twoplates.

It will be observed that as the disk or wheel f is operated by means ofthe key so as to withdraw the locking-arms the inner end of these armswill be drawn into engagement with the bushing p on the disk when theouter ends of the arms have been drawn within the casing, at which timethe lid may adapted to be secured in the top of a milkcan, said lookComprising a top circular plate, a bottom plate having a number of ribson the upper face thereof, said ribs being arranged in pairs, themembers of a pair being parallel producing a radial channel, bushingsarranged between said top and bottom plates, bolts run through saidbushings holding the plates thereagainst, a disk having a spindleprojecting centrally from each side thereof, the ends of said spindlesbeing mounted in central openings in the plates whereby the disk isinelosed by said plates, an end of one of said spindles being adapted tobe engaged by a key, a boss formed on the lower side of said disk aroundthe spindle, and a spiral

